/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
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package org.apache.skywalking.oap.server.core.analysis.record;

import lombok.*;
import org.apache.skywalking.oap.server.core.storage.StorageData;
import org.apache.skywalking.oap.server.core.storage.annotation.Column;

/**
 * @author peng-yongsheng
 */
// 抽象了所有记录类型的数据，其子类如下：
//      AlarmRecord：对应一条告警；
//      SegmentRecord：对应的是 TraceSegment 数据；
//      TopNDatabaseStatement：对应一条慢查询记录；
// 这些数据都是一条条的记录。
public abstract class Record implements StorageData {

    public static final String TIME_BUCKET = "time_bucket";

    // 表示该条记录数据所在的时间窗口，也同样被 @Column 注解标记。
    @Getter @Setter @Column(columnName = TIME_BUCKET) private long timeBucket;
}
